CN206670103U - A kind of cooling unit with auxiliary cold source - Google Patents

A kind of cooling unit with auxiliary cold source Download PDF

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Publication number
CN206670103U
CN206670103U CN201720357243.XU CN201720357243U CN206670103U CN 206670103 U CN206670103 U CN 206670103U CN 201720357243 U CN201720357243 U CN 201720357243U CN 206670103 U CN206670103 U CN 206670103U
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cooling
cooling water
electric
way valve
temperature
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CN201720357243.XU
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任宇宙
祝长宇
杨兴明
李亚博
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Beijing Deneng Hengxin Technology Co Ltd
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Beijing Deneng Hengxin Technology Co Ltd
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Abstract

The utility model discloses a kind of cooling unit with auxiliary cold source, including cooling tower, cooling water pump, refrigeration unit, fluid reservoir, fluorine pump, heat pipe indoor set and circuit control system;The cooling tower, cooling water pump, refrigeration unit are sequentially connected in series into outdoor cooling water circulation loop in order;The refrigeration unit, fluid reservoir, fluorine pump, heat pipe indoor set are sequentially connected in series into indoor refrigerant circulation circuit in order.When the temperature of cooling water in cooling tower is higher, system uses mechanical refrigeration pattern;When the temperature of cooling water in cooling tower is relatively low, system uses natural cooling pattern;When cooling water temperature is between both above-mentioned temperature, system uses mechanical refrigeration+precooling pattern, and above-mentioned Three models switch over according to cooling water temperature and demand.This cooling unit with auxiliary cold source, without increasing plate type heat exchanger in systems compared with existing Cooling System, both floor space is reduced, reduce again and once exchange heat, heat loss is reduced, and natural cooling state can be not only provided, moreover it is possible to which precooling state is provided, compressor power consumption is reduced to greatest extent, can be applied to the radiating temperature control in the fields such as base station, computer room and large-scale data center.

Description

A kind of cooling unit with auxiliary cold source
Technical field
The utility model belongs to technical field of air conditioner refrigeration, more particularly to a kind of cooling unit with auxiliary cold source.
Background technology
The field such as some base stations, computer room and large-scale data center at present, electronic equipment density is big, caloric value is big, to protect The normal operation of card system, not only cooling in summer, needs also exist for freezing in the winter time.Existing cooling unit, typically with heating power The mode of circulation, certain energy is inputted to carry out refrigerating operaton, such as the refrigeration system of steam compression cycle, either summer Or winter, refrigerating operaton could be carried out by being required for consuming more electric energy.But for the northern area of China, winter and Temperature in the transition season most of the time in spring and autumn is relatively low, even if in this case, still starting the compressor of highly energy-consuming is Do not save, the unnecessary waste of electric energy can be caused.
Therefore, using natural cooling technology, freezed using the natural cold source of the Nature, greatly reduce tradition heat The substantial amounts of energy that power circularly cooling mode is consumed, so as to which the purpose for reaching energy-saving turns into a kind of trend.Naturally it is cold But technology has two kinds of ways of realization, direct natural cooling and indirect natural cooling.Because direct natural cooling device easily corrodes, Life-span is relatively short, and security is also insufficient, therefore more using indirect natural cooling in engineering at present.But indirect natural cooling needs Increase a plate type heat exchanger in systems, not only add floor space, can also lose 2 DEG C of heat transfer temperature differences.
The content of the invention
The purpose of this utility model is to provide a kind of cooling unit with auxiliary cold source, and the unit without increase in systems Add plate type heat exchanger, both reduce floor space, reduce again and once exchange heat, reduce heat loss, and can not only provide nature The state of cooling, moreover it is possible to precooling state is provided, reduces compressor power consumption to greatest extent, reaches energy-conservation purpose.
The utility model solves technical problem and adopted the following technical scheme that:
A kind of cooling unit with auxiliary cold source, including cooling tower, cooling water pump, refrigeration unit, fluid reservoir, fluorine pump, heat Pipe indoor set and circuit control system;The refrigeration unit includes condenser, evaporator, compressor, choke valve, electric two-way valve First, electric two-way valve two, electric two-way valve three;The cooling tower, cooling water pump, refrigeration unit are sequentially connected in series into outdoor in order Cooling water circulation loop;The refrigeration unit, fluid reservoir, fluorine pump, heat pipe indoor set are sequentially connected in series into indoor heat pipe cold in order Matchmaker's circulation loop;The cooling tower entrance is with refrigeration unit inner condenser coolant outlet with being connected, with electric two-way valve three Output end is connected;The cooling tower outlet is connected with the input of cooling water pump;The input of electric two-way valve one with it is electronic The input of two-port valve two is in parallel, and this parallel branch is with the output end of cooling water pump with being connected;The output end of electric two-way valve one In parallel with the input of electric two-way valve three, this parallel branch is connected with condenser cooling water import, this parallel branch also with evaporation Device coolant outlet is connected;The input of the compressor is connected with evaporator refrigerant exit, the output end of compressor and condensation Device refrigerant import is connected;The input of the choke valve is connected with condenser refrigerant exit, the output end and evaporator of choke valve Refrigerant import is connected;The evaporator cooling water inlet is connected with the output end of electric two-way valve two.When cooling water in cooling tower When temperature is higher, system uses mechanical refrigeration pattern, and electric two-way valve one and compressor are opened, electric two-way valve two and electronic two Port valve three is closed;When the temperature of cooling water in cooling tower is relatively low, system uses natural cooling pattern, electric two-way valve two and electricity Dynamic two-port valve three is opened, and electric two-way valve one and compressor are closed;When cooling water temperature is between above-mentioned two temperature, system Using mechanical refrigeration+precooling pattern, wherein, if cooling water temperature is higher than compressor returning-oil temperature, electric two-way valve one, electricity Dynamic two-port valve two, electric two-way valve three and compressor are opened simultaneously, electronic if cooling water temperature is less than compressor returning-oil temperature Two-port valve one, electric two-way valve two and compressor are opened simultaneously, and electric two-way valve three is closed, and above-mentioned Three models are according to cooling water Temperature and demand switch over.
Condenser described above is shell and tube condenser.
Evaporator described above is shell and tube evaporator.
Fluorine pump described above is the positive displacement gas-liquid two-phase flow delivery pump that can convey gas and liquid simultaneously.
Circuit control system described above is by detecting the temperature difference control of cooling water leaving water temperature and indoor heat pipe refrigerant temperature The switching of Three models processed.
The utility model compared with prior art, without increasing plate type heat exchanger in systems, both reduces floor space, Reduce again and once exchange heat, reduce heat loss, and area that is relatively low in cooling water temperature but remaining above temperature needed for natural cooling It is interior to have added precooling pattern, compressor operating power consumption is reduced, energy-saving effect is notable, and this cooling unit with auxiliary cold source can With the radiating temperature control applied to fields such as base station, computer room and large-scale data centers.
Brief description of the drawings
Fig. 1 is the structural representation of the cooling unit with auxiliary cold source.
Fig. 2 is the cooling unit mechanical refrigeration pattern diagram with auxiliary cold source.
Fig. 3 is the cooling unit natural cooling pattern diagram with auxiliary cold source.
Fig. 4 is cooling unit mechanical refrigeration pattern+precooling pattern diagram with auxiliary cold source.
Fig. 5 is cooling unit mechanical refrigeration pattern+precooling pattern diagram with auxiliary cold source.
In figure:1st, cooling tower;2nd, cooling water pump;3rd, refrigeration unit;31st, condenser;32nd, evaporator;33rd, compressor;34、 Choke valve;35th, electric two-way valve one;36th, electric two-way valve two;37th, electric two-way valve three;4th, fluid reservoir;5th, fluorine pump;6th, heat pipe Indoor set;7th, cooling water inlet;8th, coolant outlet;9th, refrigerant import;10th, refrigerant exit.
Embodiment
It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer Type embodiment is further described.
Referring to Fig. 1, a kind of cooling unit with auxiliary cold source, including cooling tower 1, cooling water pump 2, refrigeration unit 3, storage Flow container 4, fluorine pump 5, heat pipe indoor set 6 and circuit control system;The refrigeration unit 3 includes condenser 31, evaporator 32, compression Machine 33, choke valve 34, electric two-way valve 1, electric two-way valve 2 36, electric two-way valve 3 37;The cooling tower 1, cooling water Pump 2, refrigeration unit 3 are sequentially connected in series into outdoor cooling water circulation loop in order;The refrigeration unit 3, fluid reservoir 4, fluorine pump 5, Heat pipe indoor set 6 is sequentially connected in series into indoor refrigerant circulation circuit in order;The entrance of cooling tower 1 in refrigeration unit 3 with condensing The coolant outlet 8 of device 31 is connected with being connected with the output end of electric two-way valve 3 37;The outlet of cooling tower 1 and cooling water pump 2 Input be connected;The input of electric two-way valve 1 is in parallel with the input of electric two-way valve 2 36, this parallel branch with The output end of cooling water pump 2 is with being connected;The output end of electric two-way valve 1 is in parallel with the input of electric two-way valve 3 37, this Parallel branch is connected with the cooling water inlet 7 of condenser 31, and this parallel branch is also connected with the coolant outlet 8 of evaporator 32;It is described The input of compressor 33 is connected with the refrigerant exit 10 of evaporator 32, output end and the refrigerant import 9 of condenser 31 of compressor 33 It is connected;The input of the choke valve 34 is connected with the refrigerant exit 10 of condenser 31, output end and the evaporator 32 of choke valve 34 Refrigerant import 9 is connected;The cooling water inlet 7 of evaporator 32 is connected with the output end of electric two-way valve 2 36.
Referring to Fig. 2, when cooling water temperature is higher than indoor heat pipe refrigerant temperature, system uses mechanical refrigeration pattern, electricity Dynamic two-port valve 1 is opened, and compressor 33 is opened, and electric two-way valve 2 36 is closed, and electric two-way valve 3 37 is closed, and cooling tower 1 is logical It is gaseous coolant cooling in condenser 31 that the condenser 31 into refrigeration unit 3 of supercooling water pump 2, which conveys cooling water, cold after heating But water is transmitted back in cooling tower 1 again, and the liquid refrigerants after cooling is transported in evaporator 32 by choke valve 34, with Indoor Thermal Liquid refrigerants absorbs substantial amounts of thermal evaporation and pumps to gaseous coolant in condenser 31 into gaseous state, compressor 33 after the heat exchange of pipe machine, Complete a Mechanical refrigeration cycles.
Referring to Fig. 3, when when cooling water temperature is than indoor heat pipe refrigerant temperature low 5 DEG C or more, system uses nature Refrigerating mode, electric two-way valve 2 36 and electric two-way valve 3 37 are opened, and electric two-way valve 1 and compressor 33 are closed, and are cooled down By cooling water pump 2, the evaporator 32 into refrigeration unit 3 conveys cooling water to tower 1, is directly changed in evaporator 32 and indoor heat pipe machine Heat, the cooling water after heating are transmitted back in cooling tower 1 again, complete a natural cooling circulation.
When cooling water temperature is than indoor heat pipe refrigerant temperature within low 5 DEG C, system uses mechanical refrigeration+precooling mould Formula.Referring to Fig. 4, when cooling water temperature is higher than 33 returning-oil temperature of compressor, electric two-way valve 1, electric two-way valve two 36th, electric two-way valve 3 37 and compressor 33 are opened simultaneously, and cooling water is by being divided into two branch in cooling tower 1 after cooling water pump 2 Road, evaporator 32 conveys a branch road directly into refrigeration unit 3, is precooled with indoor heat pipe machine and once exchanged heat, heating Cooling water afterwards is transmitted back in cooling tower 1 again;Condenser 31 conveys in another branch road direction refrigeration unit 3, is condenser 31 Interior gaseous coolant cooling, the cooling water after heating are transmitted back in cooling tower 1 again, and the liquid refrigerants after cooling passes through choke valve 34 It is transported in evaporator 32, mechanical refrigeration secondary heat exchange is carried out with indoor heat pipe machine, completes one-time mechanical refrigeration+precooling and follow Ring.Referring to Fig. 5, when cooling water temperature is less than 33 returning-oil temperature of compressor, electric two-way valve 1, electric two-way valve 2 36 Opened simultaneously with compressor 33, electric two-way valve 3 37 is closed, and cooling water is transported to refrigeration by cooling water pump 2 in cooling tower 1 Evaporator 32 in unit 3, precooled with indoor heat pipe machine and once exchanged heat, the cooling water after preheating enters refrigeration unit 3 Cool in condenser 31 for gaseous coolant, the cooling water after heating is transmitted back in cooling tower 1 again, and the liquid refrigerants after cooling leads to Cross choke valve 34 to be transported in evaporator 32, liquid refrigerants absorbs largely after carrying out mechanical refrigeration secondary heat exchange with indoor heat pipe machine Thermal evaporation gaseous coolant is pumped in condenser 31 into gaseous state, compressor 33, complete one-time mechanical refrigeration+precooling and follow Ring.
Herein, the involved noun of locality such as forward and backward, upper and lower is to be located at parts in accompanying drawing in figure and zero The mutual position of part is intended merely to the clear of expression technology scheme and conveniently come what is defined.It should be appreciated that the noun of locality Use should not limit the claimed scope of the application.
In the case where not conflicting, the feature in embodiment and embodiment herein-above set forth can be combined with each other.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in Within the scope of shield.

Claims (5)

1. a kind of cooling unit with auxiliary cold source, it is characterised in that including cooling tower, cooling water pump, refrigeration unit, liquid storage Tank, fluorine pump, heat pipe indoor set and circuit control system;The refrigeration unit include condenser, evaporator, compressor, choke valve, Electric two-way valve one, electric two-way valve two, electric two-way valve three;The cooling tower, cooling water pump, refrigeration unit are in order successively It is connected into outdoor cooling water circulation loop;The refrigeration unit, fluid reservoir, fluorine pump, heat pipe indoor set are sequentially connected in series into order Indoor heat pipe refrigerant circulation circuit;The cooling tower entrance is and electronic with refrigeration unit inner condenser coolant outlet with being connected The output end of two-port valve three is connected;The cooling tower outlet is connected with the input of cooling water pump;The electric two-way valve one is defeated Enter end it is in parallel with the input of electric two-way valve two, this parallel branch is with the output end of cooling water pump with being connected;The electronic two-way The output end of valve one is in parallel with the input of electric two-way valve three, and this parallel branch is connected with condenser cooling water import, this parallel connection branch Road is also connected with evaporator coolant outlet;The input of the compressor is connected with evaporator refrigerant exit, compressor it is defeated Go out end with condenser refrigerant import to be connected;The input of the choke valve is connected with condenser refrigerant exit, the output of choke valve End is connected with evaporator refrigerant import;The evaporator cooling water inlet is connected with the output end of electric two-way valve two;Work as cooling tower When the temperature of middle cooling water is higher, system uses mechanical refrigeration pattern, and electric two-way valve one and compressor are opened, electric two-way valve Two and electric two-way valve three close;When the temperature of cooling water in cooling tower is relatively low, system uses natural cooling pattern, and electronic two Port valve two and electric two-way valve three are opened, and electric two-way valve one and compressor are closed;When cooling water temperature is in above-mentioned two temperature Between when, system uses mechanical refrigeration+precooling pattern, wherein, it is electronic if cooling water temperature is higher than compressor returning-oil temperature Two-port valve one, electric two-way valve two, electric two-way valve three and compressor are opened simultaneously, if cooling water temperature is less than compressor oil return During temperature, electric two-way valve one, electric two-way valve two and compressor are opened simultaneously, and electric two-way valve three is closed, above-mentioned three kinds of moulds Formula switches over according to cooling water temperature and demand.
2. a kind of cooling unit with auxiliary cold source according to claim 1, it is characterised in that the condenser is package Formula condenser.
3. a kind of cooling unit with auxiliary cold source according to claim 1, it is characterised in that the evaporator is package Formula evaporator.
4. a kind of cooling unit with auxiliary cold source according to claim 1, it is characterised in that the fluorine pump is can be same When convey the positive displacement gas-liquid two-phase flow delivery pump of gas and liquid.
A kind of 5. cooling unit with auxiliary cold source according to claim 1, it is characterised in that the circuit control system The temperature difference by detecting cooling water leaving water temperature and indoor heat pipe refrigerant temperature controls the switching of Three models.
CN201720357243.XU 2017-04-07 2017-04-07 A kind of cooling unit with auxiliary cold source Active CN206670103U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720357243.XU CN206670103U (en) 2017-04-07 2017-04-07 A kind of cooling unit with auxiliary cold source

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Application Number Priority Date Filing Date Title
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106839481A (en) * 2017-04-07 2017-06-13 北京丰联奥睿科技有限公司 A kind of cooling unit with auxiliary cold source
CN109269133A (en) * 2018-09-27 2019-01-25 北京市水利规划设计研究院 Cooling system and cooling equipment
CN110425775A (en) * 2019-08-19 2019-11-08 北京丰联奥睿科技有限公司 A kind of V-type vertical tube evaporative cooling tower and its air-conditioning system
CN114828597A (en) * 2022-06-08 2022-07-29 中国矿业大学 Disaster recovery data center cooling system based on natural cooling and server level cooling
WO2022183857A1 (en) * 2021-03-03 2022-09-09 河北秦淮数据有限公司 Extended-range refrigeration system for data center, and data center
CN115200166A (en) * 2021-04-12 2022-10-18 重庆美的通用制冷设备有限公司 Control method and control device of air cooling unit, air cooling unit and air conditioning system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106839481A (en) * 2017-04-07 2017-06-13 北京丰联奥睿科技有限公司 A kind of cooling unit with auxiliary cold source
CN106839481B (en) * 2017-04-07 2022-06-07 北京丰联奥睿科技有限公司 Cooling unit with auxiliary cold source
CN109269133A (en) * 2018-09-27 2019-01-25 北京市水利规划设计研究院 Cooling system and cooling equipment
CN110425775A (en) * 2019-08-19 2019-11-08 北京丰联奥睿科技有限公司 A kind of V-type vertical tube evaporative cooling tower and its air-conditioning system
WO2022183857A1 (en) * 2021-03-03 2022-09-09 河北秦淮数据有限公司 Extended-range refrigeration system for data center, and data center
CN115200166A (en) * 2021-04-12 2022-10-18 重庆美的通用制冷设备有限公司 Control method and control device of air cooling unit, air cooling unit and air conditioning system
CN114828597A (en) * 2022-06-08 2022-07-29 中国矿业大学 Disaster recovery data center cooling system based on natural cooling and server level cooling
CN114828597B (en) * 2022-06-08 2022-11-08 中国矿业大学 Disaster recovery data center cooling system based on natural cooling and server level cooling

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